Tapping equipment and tapping method for drum of washing machine

Abstract

The invention provides a drum perforating device and perforating method of a washing machine. Relates to the technical field of washing machine manufacturing. The drum perforating equipment of the washing machine comprises a bearing base, a first lateral supporting plate and a second lateral supporting plate are fixedly mounted at the top of the bearing base, a transverse supporting table is fixedly mounted at the top of the second lateral supporting plate, and a carrying standing plate is fixedly mounted at the bottom of the transverse supporting table; a vertical threaded sleeve is rotatably mounted on the transverse supporting table, a lifting screw rod is mounted in the vertical threaded sleeve in a threaded mode, a first mounting frame is fixedly mounted at the bottom end of the lifting screw rod, a one-way adjusting lead screw is rotatably mounted in the first mounting frame, and a first linkage plate is mounted on the one-way adjusting lead screw in a threaded mode; and a first drilling unit is fixedly mounted at the bottom of the first linkage plate. The device has the advantages that the cylinder body and the cylinder bottom can be perforated at the same time, and the perforating efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machine manufacturing, and in particular to a drum hole punching device and a hole punching method for a washing machine. Background Art

[0002] A washing machine is a tool for washing clothes. It is mainly composed of a stainless steel inner drum, a mechanical program controller, an outer shell that is triple-protected by phosphating, electrophoresis, and spraying, and several heavy cement blocks used to balance the huge centrifugal force generated when the drum rotates to do repeated movements. The combined action of detergent and water makes the clothes clean. In the production process of washing machines, in order to ensure that the stainless steel inner drum has good water permeability, several water-permeable holes are generally opened in the drum body and the bottom of the drum, so that the cleaning liquid can enter the drum and be thrown out after cleaning. The commonly used hole-opening equipment mostly uses a milling machine with a drill bit or a special hole opener to make holes, which can achieve good hole-opening effects.

[0003] However, in the process of drilling a hole in the inner cylinder, since holes need to be drilled in both the cylinder body and the bottom of the cylinder, it is necessary to drill a hole in the cylinder body first, and then turn the inner cylinder over to drill a hole in the bottom of the cylinder after the cylinder body is drilled, which greatly reduces the drilling efficiency. After the drilling is completed, the inner cylinder needs to be removed again, and then the next inner cylinder to be drilled needs to be reinstalled to continue the drilling work. The whole drilling process is cumbersome, resulting in low drilling efficiency.

[0004] Therefore, it is necessary to provide a new drum hole punching device and hole punching method for a washing machine to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a drum hole punching device and a hole punching method for a washing machine, which can punch holes in a drum body and a drum bottom at the same time and improve the hole punching efficiency.

[0006] In order to solve the above technical problems, the drum hole opening device of the washing machine provided by the present invention comprises a bearing base, the top of the bearing base is fixedly installed with a first lateral support plate and a second lateral support plate, the top of the second lateral support plate is fixedly installed with a transverse support platform, the bottom of the transverse support platform is fixedly installed with a loading station plate, a vertical threaded sleeve is rotatably installed on the transverse support platform, a lifting screw is installed with an inner thread of the vertical threaded sleeve, a first mounting frame is fixedly installed on the bottom end of the lifting screw, a one-way adjusting screw is rotatably installed in the first mounting frame, a first linkage plate is threadedly installed on the one-way adjusting screw, a first drilling unit is fixedly installed on the bottom of the first linkage plate, a transverse threaded sleeve is rotatably installed on the loading station plate, a transverse screw is installed with an inner thread of the transverse threaded sleeve, one end of the transverse screw is fixedly installed with a first connecting frame, and the first connecting frame A first cylinder is fixedly installed in the frame, and an output shaft of the first cylinder extends outside the first connecting frame and is movably connected to the first connecting frame. A second mounting frame is fixedly installed on the output shaft of the first cylinder, and a two-way adjusting screw is rotatably installed in the second mounting frame, and two second linkage plates are threadedly installed on the two-way adjusting screw, and a second drilling unit is fixedly installed on one side of the two second linkage plates, an active connecting rod is rotatably installed on the horizontal support platform, and a driven connecting rod is provided above the horizontal support platform, and a first bevel gear is fixedly sleeved on the active connecting rod and the driven connecting rod, and the two first bevel gears are meshed with each other, a second bevel gear is fixedly sleeved on the active connecting rod and the horizontal threaded sleeve, and the two second bevel gears are meshed with each other, a third bevel gear is sleeved on the driven connecting rod and the vertical threaded sleeve, and the two third bevel gears are meshed with each other.

[0007] Preferably, a folding plate is fixedly installed on the top of the transverse support, the active connecting rod passes through the folding plate and is rotatably connected to the folding plate, a first servo motor is fixedly installed on the top of the folding plate, and the output shaft of the first servo motor is fixedly connected to the top end of the active connecting rod.

[0008] Preferably, a second servo motor is fixedly mounted on an outer wall of one side of the first mounting frame, and the output shaft of the second servo motor is fixedly connected to one end of the one-way adjustment screw. A third servo motor is fixedly mounted on the top of the second mounting frame, and the output shaft of the third servo motor is fixedly connected to the top end of the two-way adjustment screw.

[0009] Preferably, the first bevel gear, the second bevel gear and the third bevel gear are all of the same model.

[0010] Preferably, a connecting rotating shaft is rotatably installed on the first side support plate. One end of the connecting rotating shaft close to the second side support plate is fixedly installed with an adapter plate. Second connecting frames are fixedly installed on both the top and bottom of the adapter plate. Transmission shafts are rotatably installed on one side of both second connecting frames away from the first side support plate. Fourth servo motors are fixedly installed in both second connecting frames. Output shafts of the two fourth servo motors are respectively fixedly connected to ends of the two transmission shafts. Clamping mechanisms are arranged at one ends of the two transmission shafts away from the first side support plate for clamping and fixing the drum to be perforated.

[0011] Preferably, any one of the clamping mechanisms includes a U-shaped frame fixedly installed at the end of the corresponding transmission shaft. Second cylinders are fixedly installed on both the top inner wall and the bottom inner wall of the U-shaped frame. Connecting folding strips are fixedly installed on output shafts of the two second cylinders. Arc-shaped clamping pieces are fixedly installed on one side of the two connecting folding strips. Stopping pieces are fixedly installed on inner walls of the two arc-shaped clamping pieces.

[0012] Preferably, a linkage column is fixedly installed at one end of the connecting rotating shaft away from the second side support plate. A curved chute is formed in the linkage column. A guiding pull rod is slidably installed in the curved chute. Two third cylinders are fixedly installed on one side of the first side support plate away from the second side support plate. Fixing strips are fixedly installed on output shafts of the two third cylinders. The two fixing strips are fixedly connected to the guiding pull rod through columns.

[0013] Preferably, two rodless cylinders are fixedly installed on the top of the bearing base. The same support panel is fixedly installed on sliders of the two rodless cylinders. A fourth cylinder is fixedly installed on the top of the support panel. A pushing block is fixedly installed on the output shaft of the fourth cylinder. A first concave seat is fixedly installed on the top of the pushing block. A first central shaft and a second central shaft are rotatably installed in the first concave seat. A fifth servo motor is fixedly installed on an outer wall of one side of the first concave seat. The output shaft of the fifth servo motor is fixedly connected to one end of the first central shaft. A driving circular gear is fixedly sleeved on the first central shaft. A toothless circular gear is fixedly sleeved on the second central shaft. The toothless circular gear meshes with the driving circular gear. A support prism is fixedly installed on the toothless circular gear. A second concave seat is fixedly installed on the top of the support prism. Fifth cylinders are fixedly installed on both inner walls of two sides of the second concave seat. V-shaped clamping seats are fixedly installed on output shafts of the two fifth cylinders.

[0014] Preferably, a sixth cylinder is fixedly installed on a side of the second lateral support plate away from the first lateral support plate, a connecting plate is fixedly installed on the output shaft of the sixth cylinder, a placing table and a third mounting frame are fixedly installed on a side of the connecting plate close to the second lateral support plate, the third mounting frame is located below the placing table, and the placing table and the third mounting frame both pass through the second lateral support plate and are movably connected to the second lateral support plate, a push screw is rotatably installed in the third mounting frame, a sixth servo motor is fixedly installed on an outer wall of one side of the third mounting frame, the output shaft of the sixth servo motor is fixedly connected to one end of the push screw, a push plate is threadedly installed on the push screw, the top of the push plate passes through the placing table and is movably connected to the placing table, and the bottom of the placing table is fixed A seventh cylinder is installed, and a locking plate is fixedly installed on the output shaft of the seventh cylinder, and the locking plate passes through the placing table and is slidably connected to the placing table. An extension arm is fixedly installed on the side of the second lateral support plate close to the first lateral support plate, and the extension arm is provided with a T-shaped slide groove, and a T-shaped plug block is slidably installed in the T-shaped slide groove, and the T-shaped plug block is fixedly connected to the extension arm through bolts, and a waste box is fixedly installed on one side of the T-shaped plug block, and the waste box is located below the second drilling unit; a through groove is provided on the bearing base, and a waste cart is provided in the through groove; a belt conveyor unit is provided on the bearing base, and the belt conveyor unit passes through the second lateral support plate and is movably connected to the second lateral support plate, and the waste cart and the belt conveyor unit are respectively located on both sides of the first concave seat.

[0015] The present invention also provides a method for opening holes in a drum of a washing machine, comprising the following steps: S1. Fixing the roller: first, place a roller to be drilled on the lower arc-shaped clamping pieces in the two sets of clamping mechanisms, so that the two rollers are in contact with the corresponding baffles, start the four second cylinders, and clamp the two rollers with the corresponding two arc-shaped clamping pieces; S2, drilling holes in the barrel: start the first drilling unit and the second drilling unit, and then start the first servo motor in the forward direction, the active connecting rod and the driven connecting rod rotate at the same time, the vertical threaded sleeve and the horizontal threaded sleeve begin to rotate, the lifting screw on one side begins to descend, and the lateral screw on the other side moves horizontally toward the barrel. When the first drilling unit and the second drilling unit contact the barrel body and the bottom of the barrel respectively, the drilling operation is carried out synchronously; S3, hole position adjustment: reversely start the first servo motor to bring out the first drilling unit and the second drilling unit, and forwardly start the corresponding fourth servo motor to rotate the clamped roller to a specified angle, thereby adjusting the hole position; S4, replacing the roller: start the output shafts of the two third cylinders to extend, and the linkage column rotates with the connecting shaft, so that the two second connecting frames exchange positions with each other, and then continue to open holes on the next roller.

[0016] Compared with the related art, the drum hole opening device and hole opening method of the washing machine provided by the present invention have the following beneficial effects: 1. By setting the active connecting rod and the driven connecting rod, and the transmission cooperation of the first bevel gear, the second bevel gear and the third bevel gear, the first drilling unit and the second drilling unit can be operated at the same time, and the drum body and the bottom of the drum can be opened at the same time, which can greatly shorten the time for opening the drum and improve the production efficiency of the drum; Second, by utilizing the sliding cooperation between the curved slide groove and the guide rod, each time the guide rod moves horizontally, the two second connecting frames can alternate positions, so that after one hole is drilled, the next roller can be drilled quickly, thereby further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a drum hole opening device for a washing machine provided by the present invention; Figure 2 A partial front plan view of the structure of the first embodiment of the drum hole opening device of the washing machine provided by the present invention; Figure 3 A schematic diagram of the assembly of two second connecting frames in the first embodiment of the drum hole opening device for a washing machine provided by the present invention; Figure 4 A schematic diagram of the connection structure between the rotating shaft and the connecting plate in the first embodiment of the drum hole opening device for a washing machine provided by the present invention; Figure 5 A schematic diagram of the connection structure of the transmission shaft and the yoke in the first embodiment of the drum hole opening device for a washing machine provided by the present invention; Figure 6 A schematic diagram of the connection structure between the transverse support platform and the loading station plate in the first embodiment of the drum hole opening device for a washing machine provided by the present invention; Figure 7 A schematic diagram of the internal structure of the second mounting frame in the first embodiment of the drum hole opening device for a washing machine provided by the present invention; Figure 8 A schematic diagram of the internal structure of a first mounting frame in a first embodiment of a drum hole opening device for a washing machine provided by the present invention; Fig. 9 A schematic structural diagram of a second embodiment of a drum hole opening device for a washing machine provided by the present invention; Fig.10 A schematic structural diagram of another perspective of the second embodiment of the drum hole opening device for a washing machine provided by the present invention; Fig.11Schematic diagram of the connection structure between the bearing base and the second lateral support plate in the second embodiment of the drum opening device for a washing machine provided by the present invention; Fig.12 Schematic diagram of the connection structure between the extension arm and the T-shaped insertion block in the second embodiment of the drum opening device for a washing machine provided by the present invention; Fig.13 Schematic diagram of the connection structure between the first central shaft and the driving circular gear in the second embodiment of the drum opening device for a washing machine provided by the present invention; Fig.14 Schematic diagram of the connection structure between the second central shaft and the toothless circular gear in the second embodiment of the drum opening device for a washing machine provided by the present invention; Fig.15 Schematic diagram of the connection structure between the pushing screw rod and the pushing plate in the second embodiment of the drum opening device for a washing machine provided by the present invention; Fig.16 Schematic diagram of the structure of the placement table in the second embodiment of the drum opening device for a washing machine provided by the present invention.

[0018] Reference numerals in the figure: 1, bearing base; 2, first lateral support plate; 3, second lateral support plate; 4, transverse support platform; 5, load-bearing station board; 6, vertical threaded sleeve; 7, lifting screw rod; 8, first mounting frame; 9, one-way adjustment screw rod; 10, first linkage plate; 11, first drilling unit; 12, transverse threaded sleeve; 13, transverse translation screw rod; 14, first connection frame; 15, first cylinder; 16, second mounting frame; 17, two-way adjustment screw rod; 18, second linkage plate; 19, second drilling unit; 20, driving connecting rod; 21, driven connecting rod; 22, first bevel gear; 23, second bevel gear; 24, third bevel gear; 25, connecting rotating shaft; 26, connecting plate; 27, second connection frame; 28, transmission shaft; 29, C-shaped frame; 30, second cylinder; 31, connecting folding strip; 32, arc-shaped clamping piece; 33, retaining piece; 34, linkage column; 35, curved sliding groove; 36, third cylinder; 37, fixing strip; 38, guiding pull rod; 39, extension arm; 40, T-shaped insertion block; 41, waste box; 42, rodless cylinder; 43, support panel; 44, fourth cylinder; 45, pushing block; 46, first concave seat; 47, first central shaft; 48, driving circular gear; 49, second central shaft; 50, toothless circular gear; 51, support prism; 52, second concave seat; 53, fifth cylinder; 54, V-shaped clamping seat; 55, waste vehicle; 56, belt conveyor unit; 57, sixth cylinder; 58, connecting plate; 59, placement table; 60, third mounting frame; 61, pushing screw rod; 62, pushing plate; 63, seventh cylinder; 64, clamping plate. Detailed implementation manners

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] First embodiment: Please refer to Figure 1-Figure 8In the first embodiment of the present invention, the drum hole opening device of the washing machine includes: a bearing base 1, and a first lateral support plate 2 and a second lateral support plate 3 are fixed on the top of the bearing base 1, and a horizontal support platform 4 is fixed on the top of the second lateral support plate 3, and a loading station 5 is fixed on the bottom of the horizontal support platform 4, a vertical threaded sleeve 6 is rotatably installed on the horizontal support platform 4, and a lifting screw 7 is installed on its internal thread, and a first mounting frame 8 is fixed at the bottom end of the lifting screw 7, and a vertical limiting rod is slidably installed on the horizontal support platform 4, the bottom end of the vertical limiting rod is fixed to the first mounting frame 8, and a one-way adjusting screw 9 is rotatably installed in the first mounting frame 8, and a second servo motor is fixed on the outer wall of one side of the first mounting frame 8, and its output shaft is fixed to one end of the one-way adjusting screw 9. A first linkage plate 10 is threadedly mounted on the one-way adjustment screw 9, and two first limit slide rods are fixed in the first mounting frame 8, and the two first limit slide rods all penetrate the first linkage plate 10 and are slidably connected thereto. A first drilling unit 11 is fixed to the bottom of the first linkage plate 10, and a transverse threaded sleeve 12 is rotatably mounted on the loading station plate 5, and a transverse screw 13 is mounted on its internal thread, and a first connecting frame 14 is fixed to one end of the transverse screw 13, and a transverse limit rod is slidably mounted on the loading station plate 5, and one end of the transverse limit rod is fixed to the first connecting frame 14, and a first cylinder 15 is fixed in the first connecting frame 14, and its output shaft extends to the outside of the first connecting frame 14 and is movably connected to the first connecting frame 14, and the output shaft of the first cylinder 15 A second mounting frame 16 is fixed on the top, a bidirectional adjustment screw 17 is rotatably installed in the second mounting frame 16, and a third servo motor is fixed on the top of the second mounting frame 16, and its output shaft is fixedly connected to the top of the bidirectional adjustment screw 17, two second linkage plates 18 are threadedly installed on the bidirectional adjustment screw 17, and two second limit slide rods are fixed in the second mounting frame 16, the two second limit slide rods penetrate the two second linkage plates 18 and are slidably connected to the two second linkage plates 18, and a second drilling unit 19 is fixed on one side of the two second linkage plates 18. The second drilling unit 19 and the first drilling unit 11 are both composed of a motor and a drill bit, and are both common drilling components on the market, and no further elaboration is made here. An active connecting rod is rotatably installed on the horizontal support 4 20, and a folding plate is fixed on the top of the horizontal support 4, the active connecting rod 20 is set to pass through the folding plate and is rotatably connected to the folding plate, a first servo motor is fixed on the top of the folding plate, and its output shaft is fixedly connected to the top of the active connecting rod 20, and two mounting blocks are fixed on the top of the horizontal support 4, and the same driven connecting rod 21 is rotatably mounted on the two mounting blocks, and a first bevel gear 22 is fixedly sleeved on the active connecting rod 20 and the driven connecting rod 21, and the two first bevel gears 22 are meshed with each other, and a second bevel gear 23 is fixedly sleeved on the active connecting rod 20 and the horizontal threaded sleeve 12, and the two second bevel gears 23 are meshed with each other, and a third bevel gear 24 is sleeved on the driven connecting rod 21 and the vertical threaded sleeve 6, and the two third bevel gears 24 are meshed with each other, and the meshing transmission of multiple bevel gears is achieved.It is possible to rotate the vertical thread sleeve 6 and the horizontal thread sleeve 12 simultaneously only by starting the first servo motor, so that the barrel body and the bottom of the drum can be drilled simultaneously. Moreover, the first bevel gear 22, the second bevel gear 23, and the third bevel gear 24 are all of the same model, which can ensure the same rotational speed.

[0021] In the above method, in order to clamp and fix the drum to facilitate the opening process, a connecting rotating shaft 25 is rotatably installed on the first side support plate 2. One end of the connecting rotating shaft 25 close to the second side support plate 3 is fixed with an adapter plate 26. Second connecting frames 27 are fixed to both the top and bottom of the adapter plate 26. Moreover, drive shafts 28 are rotatably installed on the sides of the two second connecting frames 27 away from the first side support plate 2. Fourth servo motors are fixed inside the two second connecting frames 27. The output shafts of the two fourth servo motors are respectively fixedly connected to the ends of the two drive shafts 28. Clamping mechanisms are provided at the ends of the two drive shafts 28 away from the first side support plate 2 for clamping and fixing the drum to be opened. Any one of the clamping mechanisms includes a U-shaped frame 29, which is fixedly installed at the end of the corresponding drive shaft 28. Moreover, an annular guide rail is fixed on the second connecting frame 27, and two stabilizing blocks are slidably installed on the annular guide rail. One side of each of the two stabilizing blocks is fixed to the U-shaped frame 29, which can ensure the stability of the rotation of the U-shaped frame 29. Second cylinders 30 are fixed to both the inner walls of the top and bottom of the U-shaped frame 29. Connecting folding strips 31 are fixed to the output shafts of the two second cylinders 30. Arc-shaped clamping pieces 32 are fixed to one side of each of the two connecting folding strips 31. Stop pieces 33 are fixed to the inner walls of the two arc-shaped clamping pieces 32. The inner diameter of the arc-shaped clamping piece 32 is the same as the diameter of the drum, which can fit well with the outer wall of the drum, thus achieving a good clamping effect.

[0022] In this method, in order to enable the two second connecting frames 27 to rotate so that they can exchange positions with each other, a linkage column 34 is fixed to the end of the connecting rotating shaft 25 away from the second side support plate 3. A curved chute 35 is formed in the linkage column 34. A guiding pull rod 38 is slidably installed in the curved chute 35. Two third cylinders 36 are fixed to the side of the first side support plate 2 away from the second side support plate 3. Fixed strips 37 are fixed to the output shafts of the two third cylinders 36. The two fixed strips 37 are fixedly connected to the guiding pull rod 38 through columns.

[0023] In this embodiment: In the initial state, the output shaft of the first cylinder 15 is in the extended state, and the output shaft of the second cylinder 30 is in the retracted state; When it is necessary to drill a hole in the roller, first place a roller to be drilled on the arc-shaped clamping pieces 32 located at the bottom in the two sets of clamping mechanisms, and make it contact with the blocking pieces 33 therein, then start the four second cylinders 30, and use the corresponding two arc-shaped clamping pieces 32 to clamp the two rollers. At this time, the roller located at the top is below the first drilling unit 11, and its axis is on the same axis as the center points of the two second drilling units 19. Then, the first drilling unit 11 and the second drilling unit 19 are directly started, and the drill bits on the two drilling units begin to rotate. Then, the first servo motor is started in the positive direction, and its output shaft drives the active connecting rod 20 to rotate. At this time, the meshing of the two first bevel gears 22 makes the driven connecting rod 21 rotate at the same time. At the same time, the transmission cooperation of the two second bevel gears 23 and the two third bevel gears 24 makes the vertical threaded sleeve 6 and the horizontal threaded sleeve 12 start to rotate. On one side, the lifting screw 7 starts to descend, and on the other side, the transverse screw 13 moves transversely toward the direction of the drum. When the first drilling unit 11 and the second drilling unit 19 contact the barrel body and the bottom of the barrel respectively, the hole opening work is carried out at the same time; After each drilling unit has completed drilling a hole, the first servo motor is started in the reverse direction to bring out the first drilling unit 11 and the second drilling unit 19. Subsequently, the corresponding fourth servo motor is started in the forward direction, and its output shaft drives the corresponding transmission shaft 28 to rotate, thereby being able to rotate with the clamped drum. After rotating a specified angle, the fourth servo motor is turned off, and then the first servo motor is started in the forward direction again to perform the hole drilling work again. After the hole drilling is completed, the first servo motor is started in the reverse direction again, and the fourth servo motor is started in the forward direction again to rotate the drum to a specified angle to drill a hole. This process is repeated until one circle of the drum body and one circle of the bottom of the drum are drilled. Then, the second servo motor is started in the forward direction, and its output shaft drives the corresponding transmission shaft 28 to rotate, thereby rotating the clamped drum. After rotating the drum to a specified angle, the fourth servo motor is turned off, and then the first servo motor is started in the forward direction again to perform the hole drilling work again. The shaft drives the one-way adjustment screw 9 to rotate, so that the first linkage plate 10 moves horizontally with the first drilling unit 11. After the first drilling unit 11 moves a short distance, it corresponds to the part of the cylinder body that has not been drilled yet, and then the third servo motor is started in the positive direction to make the two second linkage plates 18 approach each other, so that the positions of the two second drilling units 19 can be adjusted, and the two second drilling units 19 are adjusted to correspond to the part of the bottom of the cylinder that has not been drilled yet. Then, the drum is drilled in the same way as above, and then it is reciprocated. After each full circle of drilling, the positions of the first drilling unit 11 and the second drilling unit 19 are adjusted until all the holes of the drum are drilled. During the drilling process, since the number of holes drilled at the bottom of the cylinder is less than that of the cylinder body, when all holes are drilled at the bottom of the cylinder, the cylinder body has not yet completed all the drilling work. At this time, the output shaft of the first cylinder 15 can be started to retract, so that the second drilling unit 19 is away from the cylinder. In this way, during the operation of the first servo motor, only the first drilling unit 11 will contact the cylinder body to drill holes, and the second drilling unit 19 will not contact the bottom of the cylinder. After all the holes are drilled, the output shafts of the two third cylinders 36 are started to extend. During the extension process, the coordination between the curved slide groove 35 and the guide rod 38 causes the linkage column 34 to rotate with the connecting shaft 25, and then the two second connecting frames 27 rotate. After the guide rod 38 moves to the final position, the two second connecting frames 27 rotate 180° and exchange positions with each other, and then continue to drill holes on the next roller. On the other side, the output shafts of the two corresponding second cylinders 30 are activated to retract, the roller with holes drilled is loosened, and then it is directly removed, and the next roller to be drilled is fixed; In the above process, when the transmission shaft 28 rotates to adjust the opening position of the drum, after the fourth servo motor rotates 360° in the forward direction, the fourth servo motor is started in the reverse direction and then rotated 360° in the reverse direction, which can prevent the cable from being entangled.

[0024] Compared with the related art, the drum hole opening device of the washing machine provided by the present invention has the following beneficial effects: 1. By means of the driving connecting rod 20 and the driven connecting rod 21, and the transmission cooperation of the first bevel gear 22, the second bevel gear 23 and the third bevel gear 24, the first drilling unit 11 and the second drilling unit 19 can be operated simultaneously, and the drum body and the bottom of the drum can be opened at the same time, which can greatly shorten the time for opening the drum and improve the production efficiency of the drum; Second, by utilizing the sliding cooperation between the curved slide groove 35 and the guide rod 38, each time the guide rod 38 moves horizontally, the two second connecting frames 27 can alternate positions, so that after one hole is drilled, the next roller can be drilled quickly, thereby further improving work efficiency.

[0025] Second embodiment: Based on the drum hole opening device of the washing machine provided in the first embodiment of the present application, the second embodiment of the present application proposes another drum hole opening device of the washing machine. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0026] The second embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] Please refer to Figure 9-Figure 16 The drum hole opening device of the washing machine also includes two rodless cylinders 42, both of which are fixed on the top of the bearing base 1, and the same support panel 43 is fixed on the sliders of the two rodless cylinders 42, and a fourth cylinder 44 is fixed on the top of the support panel 43, and a push block 45 is fixed on the output shaft of the fourth cylinder 44, and a first concave seat 46 is fixed on the top of the push block 45, in which a first central axis 47 and a second central axis 49 are rotatably installed, and a fifth servo motor is fixed on the outer wall of one side of the first concave seat 46, and its output shaft is fixedly connected to one end of the first central axis 47 A driving circular gear 48 is fixedly sleeved on the first central shaft 47, and a toothless circular gear 50 is fixedly sleeved on the second central shaft 49. The toothless circular gear 50 is meshed with the driving circular gear 48. By controlling the forward and reverse rotation of the output shaft of the fifth servo motor, the toothless circular gear 50 can be driven to rotate forward and reverse. A prism 51 is fixed on the toothless circular gear 50, and a second concave seat 52 is fixed on the top of the toothless circular gear 50. Fifth cylinders 53 are fixed on the inner walls of both sides of the second concave seat 52. V-shaped clamp seats 54 are fixed on the output shafts of the two fifth cylinders 53, which can reliably clamp the drum.

[0028] In the above method, in order to facilitate people to install the next roller to be drilled in the clamping mechanism, a sixth cylinder 57 is fixed on the side of the second lateral support plate 3 away from the first lateral support plate 2, and a joint plate 58 is fixed on its output shaft. A placing table 59 and a third mounting frame 60 are fixed on the side of the joint plate 58 close to the second lateral support plate 3. The third mounting frame 60 is located below the placing table 59, and two baffles are fixed on the top of the placing table 59, which can limit the roller to be drilled between the two, and the placing table 59 and the third mounting frame 60 both penetrate the second lateral support plate 3 and are movably connected to the second lateral support plate 3. The movable connection mode is realized by opening a first movable opening on the second lateral support plate 3, and a push screw 61 is rotatably installed in the third mounting frame 60, and a sixth servo motor is fixed on the outer wall of one side of the third mounting frame 60, and its output shaft is fixedly connected to one end of the push screw 61, and a push plate 62 is threadedly installed on the push screw 61, and a long strip opening is opened on the placement table 59, and the push plate 62 passes through the long strip opening and contacts with the inner wall of the long strip opening, so that the push plate 62 can move in the long strip opening, and can ensure that the push plate 62 can only move in a straight line without offset, and the push plate 62 can move in a straight line without offset. A seventh cylinder 63 is fixed to the bottom, and a positioning plate 64 is fixed on its output shaft, and the positioning plate 64 penetrates the placing table 59 and is slidably connected to the placing table 59. An extension arm 39 is fixed to the side of the second lateral support plate 3 close to the first lateral support plate 2, and a T-shaped slide groove is provided on the extension arm 39, and a T-shaped plug block 40 is slidably installed in the T-shaped slide groove. The T-shaped plug block 40 is fixedly connected to the extension arm 39 by bolts, and a waste box 41 is fixed to one side of the T-shaped plug block 40. The waste box 41 is located below the second drilling unit 19, so that the fallen metal debris can be caught, and a through groove is provided on the bearing base 1, and a through groove is provided in the through groove. There is a scrap cart 55, through the cooperation of the active circular gear 48 and the toothless circular gear 50, the remaining metal debris in the drum can be poured into the scrap cart 55, and a belt conveyor unit 56 commonly seen on the market is provided on the supporting base 1, and the belt conveyor unit 56 passes through the second lateral support plate 3 and is movably connected to the second lateral support plate 3. The movable connection method is achieved by opening a second movable opening on the second lateral support plate 3. The drum with the holes drilled can be directly placed on the belt conveyor unit 56 and transported to the next process. The scrap cart 55 and the belt conveyor unit 56 are respectively located on both sides of the first concave seat 46.

[0029] In this embodiment: A plurality of rollers to be drilled are placed on the placing table 59 in advance, and in the initial state, the output shaft of the sixth cylinder 57 is in an extended state; When the drum is being perforated, a small amount of metal debris will be generated, and part of the debris will directly pass through the holes or fall directly into the waste box 41 along the outer wall of the drum; When it is necessary to replace the roller with holes drilled in the lower hole, the two rodless cylinders 42 can be started first, and the sliders of the two rodless cylinders 42 can rise with the supporting panel 43, and the first concave seat 46 and the second concave seat 52 can also rise accordingly, until they rise to the highest position, and the two V-shaped clamp seats 54 are on both sides of the roller with holes drilled in the lower hole, and then the output shafts of the two fifth cylinders 53 are started to extend, so that the two V-shaped clamp seats 54 are close to each other, and finally the roller is clamped, and then the output shaft of the corresponding second cylinder 30 is started to retract, and the roller is released. , then the output shaft of the fourth cylinder 44 is started to extend, and the drum is taken out from the arc-shaped clamping piece 32. The rodless cylinder 42 is started at any time, and the slider on it brings the supporting panel 43 down. After it drops to the initial position, the fifth servo motor is started in the positive direction, and its output shaft drives the first central axis 47 to rotate. At this time, the driving circular gear 48 and the toothless circular gear 50 are engaged, so that the supporting prism 51 rotates with the second concave seat 52. At this time, the opening of the drum gradually tilts downward, and the internal debris will fall into the waste car 55; After the waste is discharged, the fifth servo motor is started in the reverse direction, and the drum starts to rotate in the reverse direction. When the bottom of the drum rotates to contact the belt conveyor unit 56, the output shaft of the fifth cylinder 53 is started to retract, and the drum is released. The drum is automatically transported by the belt conveyor unit 56, and then the fifth servo motor is started in the forward direction to rotate the second concave seat 52 back to its original position. While the above steps are being performed, the output shaft of the sixth cylinder 57 can be started to retract, and the plate 58 can be moved with the placing table 59 toward the clamping mechanism below. Finally, the placing table 59 is relatively close to the clamping mechanism, and then the output shaft of the seventh cylinder 63 is started to extend, and the clamping plate 64 is driven downward without obstructing the roller. Then the output shaft of the second cylinder 30 located below in the clamping mechanism is started to extend. At this time, the top end surface of the placing table 59 is tangent to the bottom of the arc-shaped clamping piece 32, and then the sixth servo motor is started in the positive direction, and its output shaft drives the push screw 61 to rotate, so that the push plate 62 drives the push plate 62 to move. The plurality of rollers move together. When the first roller moves into the arc-shaped clamping piece 32 and contacts the corresponding baffle 33, the sixth servo motor is turned off, and the output shaft of another second cylinder 30 in the clamping mechanism is immediately started to extend, so that the roller can be clamped. Then the output shaft of the sixth cylinder 57 is started to extend again, and the placing table 59 is brought back to its original position. Then the output shaft of the seventh cylinder 63 is started to retract, and the locking plate 64 is also brought back to its original position to form a locking effect. This reciprocating process can be performed in the future to reinstall the rollers to be opened, and when the rollers in the placing table 59 are almost exhausted, the rollers can be placed up again.

[0030] The present invention also provides a method for opening holes in a drum of a washing machine, comprising the following steps: S1, fixing the roller: firstly, place a roller to be drilled on the arc-shaped clamping pieces 32 located at the bottom in the two sets of clamping mechanisms, so that the two rollers are in contact with the corresponding blocking pieces 33, start the four second cylinders 30, and clamp the two rollers with the corresponding two arc-shaped clamping pieces 32; S2, drilling holes in the cylinder: start the first drilling unit 11 and the second drilling unit 19, and then start the first servo motor in the forward direction, the active connecting rod 20 and the driven connecting rod 21 rotate simultaneously, the vertical threaded sleeve 6 and the horizontal threaded sleeve 12 start to rotate, the lifting screw 7 starts to descend on one side, and the lateral screw 13 moves laterally toward the cylinder on the other side. When the first drilling unit 11 and the second drilling unit 19 contact the cylinder body and the bottom of the cylinder respectively, the drilling operation is carried out synchronously; S3, hole position adjustment: reversely start the first servo motor to bring out the first drilling unit 11 and the second drilling unit 19, and forwardly start the corresponding fourth servo motor to rotate the clamped roller by a specified angle, thereby adjusting the hole position; S4, replacing the roller: start the output shafts of the two third cylinders 36 to extend, and the linkage column 34 rotates with the connecting shaft 25, so that the two second connecting frames 27 exchange positions with each other, and then continue to open holes on the next roller.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drum hole opening device for a washing machine, comprising a bearing base, characterized in that: The top of the bearing base is fixedly installed with a first lateral support plate and a second lateral support plate, the top of the second lateral support plate is fixedly installed with a transverse support platform, the bottom of the transverse support platform is fixedly installed with a loading station plate, a vertical threaded sleeve is rotatably installed on the transverse support platform, a lifting screw is installed with an inner thread of the vertical threaded sleeve, a first mounting frame is fixedly installed on the bottom end of the lifting screw, a one-way adjusting screw is rotatably installed in the first mounting frame, a first linkage plate is threadedly installed on the one-way adjusting screw, a first drilling unit is fixedly installed on the bottom of the first linkage plate, a transverse threaded sleeve is rotatably installed on the loading station plate, a transverse screw is installed with an inner thread of the transverse threaded sleeve, one end of the transverse screw is fixedly installed with a first connecting frame, a first cylinder is fixedly installed in the first connecting frame, and the first cylinder The output shaft of the cylinder extends outside the first connecting frame and is movably connected to the first connecting frame, and a second mounting frame is fixedly installed on the output shaft of the first cylinder, and a two-way adjusting screw is rotatably installed in the second mounting frame, and two second linkage plates are threadedly installed on the two-way adjusting screw, and a second drilling unit is fixedly installed on one side of the two second linkage plates, an active connecting rod is rotatably installed on the horizontal support platform, and a driven connecting rod is provided above the horizontal support platform, and a first bevel gear is fixedly sleeved on the active connecting rod and the driven connecting rod, and the two first bevel gears are meshed with each other, a second bevel gear is fixedly sleeved on the active connecting rod and the horizontal threaded sleeve, and the two second bevel gears are meshed with each other, a third bevel gear is sleeved on the driven connecting rod and the vertical threaded sleeve, and the two third bevel gears are meshed with each other.

2. The drum hole opening device of a washing machine according to claim 1, characterized in that: A folding plate is fixedly installed on the top of the transverse support, the active connecting rod passes through the folding plate and is rotatably connected to the folding plate, a first servo motor is fixedly installed on the top of the folding plate, and the output shaft of the first servo motor is fixedly connected to the top end of the active connecting rod.

3. The drum hole opening device of a washing machine according to claim 2, characterized in that: A second servo motor is fixedly mounted on an outer wall of one side of the first mounting frame, and an output shaft of the second servo motor is fixedly connected to one end of the one-way adjustment screw. A third servo motor is fixedly mounted on the top of the second mounting frame, and an output shaft of the third servo motor is fixedly connected to the top end of the two-way adjustment screw.

4. The drum hole opening device of a washing machine according to claim 3, characterized in that: The first bevel gear, the second bevel gear and the third bevel gear are all of the same model.

5. The drum hole opening device of a washing machine according to claim 4, characterized in that: A connecting shaft is rotatably installed on the first lateral support plate, a connecting plate is fixedly installed on one end of the connecting shaft close to the second lateral support plate, a second connecting frame is fixedly installed on the top and bottom of the connecting plate, a transmission shaft is rotatably installed on one side of the two second connecting frames away from the first lateral support plate, a fourth servo motor is fixedly installed in the two second connecting frames, the output shafts of the two fourth servo motors are fixedly connected to the ends of the two transmission shafts respectively, and a clamping mechanism is provided on one end of the two transmission shafts away from the first lateral support plate for clamping and fixing the roller to be drilled.

6. The drum hole opening device of a washing machine according to claim 5, characterized in that: Any one of the clamping mechanisms includes a U-shaped frame, the U-shaped frame is fixedly installed at the end of the corresponding transmission shaft, second cylinders are fixedly installed on the inner walls of the top and bottom of the U-shaped frame, connecting folding strips are fixedly installed on the output shafts of the two second cylinders, arc-shaped clamping pieces are fixedly installed on one side of the two connecting folding strips, and blocking pieces are fixedly installed on the inner walls of the two arc-shaped clamping pieces.

7. The drum hole opening device of a washing machine according to claim 6, characterized in that: One end of the connecting rotating shaft away from the second side support plate is fixedly installed with a linkage column, a curved chute is formed in the linkage column, a guiding pull rod is slidably installed in the curved chute, two third cylinders are fixedly installed on one side of the first side support plate away from the second side support plate, fixing strips are fixedly installed on the output shafts of the two third cylinders, and the two fixing strips are fixedly connected to the guiding pull rod through columns.

8. The drum hole opening device of a washing machine according to claim 1, characterized in that: Two rodless cylinders are fixedly installed on the top of the bearing base, the same support panel is fixedly installed on the sliders of the two rodless cylinders, a fourth cylinder is fixedly installed on the top of the support panel, a pushing block is fixedly installed on the output shaft of the fourth cylinder, a first concave seat is fixedly installed on the top of the pushing block, a first central shaft and a second central shaft are rotatably installed in the first concave seat, a fifth servo motor is fixedly installed on the outer wall of one side of the first concave seat, the output shaft of the fifth servo motor is fixedly connected to one end of the first central shaft, a driving circular gear is fixedly sleeved on the first central shaft, a toothless circular gear is fixedly sleeved on the second central shaft, the toothless circular gear meshes with the driving circular gear, a support prism is fixedly installed on the toothless circular gear, a second concave seat is fixedly installed on the top of the support prism, fifth cylinders are fixedly installed on the inner walls of both sides of the second concave seat, and V-shaped clamping seats are fixedly installed on the output shafts of the two fifth cylinders.

9. The drum hole opening device of a washing machine according to claim 8, characterized in that: A sixth cylinder is fixedly installed on a side of the second lateral support plate away from the first lateral support plate, a joint plate is fixedly installed on the output shaft of the sixth cylinder, a placing table and a third mounting frame are fixedly installed on a side of the joint plate close to the second lateral support plate, the third mounting frame is located below the placing table, and the placing table and the third mounting frame both penetrate the second lateral support plate and are movably connected to the second lateral support plate, a push screw is rotatably installed in the third mounting frame, a sixth servo motor is fixedly installed on an outer wall of one side of the third mounting frame, the output shaft of the sixth servo motor is fixedly connected to one end of the push screw, a push plate is threadedly installed on the push screw, the top of the push plate penetrates the placing table and is movably connected to the placing table, and the bottom of the placing table is fixedly installed There is a seventh cylinder, a locking plate is fixedly installed on the output shaft of the seventh cylinder, the locking plate passes through the placing table and is slidably connected to the placing table, an extension arm is fixedly installed on the side of the second lateral support plate close to the first lateral support plate, a T-shaped slide groove is provided on the extension arm, a T-shaped plug block is slidably installed in the T-shaped slide groove, the T-shaped plug block is fixedly connected to the extension arm through bolts, a waste box is fixedly installed on one side of the T-shaped plug block, the waste box is located below the second drilling unit, a through groove is provided on the bearing base, a waste cart is provided in the through groove, a belt conveyor unit is provided on the bearing base, the belt conveyor unit passes through the second lateral support plate and is movably connected to the second lateral support plate, and the waste cart and the belt conveyor unit are respectively located on both sides of the first concave seat.

10. A method for drilling holes in a drum of a washing machine using the drum drilling device according to claim 7, characterized in that: The following steps are involved: S1. Fixing the roller: first, place a roller to be drilled on the lower arc-shaped clamping pieces in the two sets of clamping mechanisms, so that the two rollers are in contact with the corresponding baffles, start the four second cylinders, and clamp the two rollers with the corresponding two arc-shaped clamping pieces; S2, drilling holes in the barrel: start the first drilling unit and the second drilling unit, and then start the first servo motor in the forward direction, the active connecting rod and the driven connecting rod rotate at the same time, the vertical threaded sleeve and the horizontal threaded sleeve begin to rotate, the lifting screw on one side begins to descend, and the lateral screw on the other side moves horizontally toward the drum, when the first drilling unit and the second drilling unit contact the barrel body and the bottom of the barrel respectively, the drilling operation is carried out synchronously; S3, hole position adjustment: reversely start the first servo motor to bring out the first drilling unit and the second drilling unit, and forwardly start the corresponding fourth servo motor to rotate the clamped roller to a specified angle, thereby adjusting the hole position; S4, replacing the roller: start the output shafts of the two third cylinders to extend, and the linkage column rotates with the connecting shaft, so that the two second connecting frames exchange positions with each other, and then continue to open holes on the next roller.

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